The QLF-6000-45 from Qualwave is a Low Pass RF Filter with Frequency DC to 6 GHz, Stopband Frequency 6.8 to 10.5 GHz, Insertion Loss 1 dB, Upper Rejection 45 dB @ 6.8 to 10.5 GHz, VSWR 2.00:1. Tags: Module with Connector. More details for QLF-6000-45 can be seen below.